Power-transmission device.



No. 847,457. I I PATENTED MAR 19, 1907.

' J. J. BARTBNSTEIN.

POWER TRANSMISSION DEVICE.

APPLICATION FILED MAR. 30. 1906.

' z snsms-smm 1,

PATENTED MAR. 19, 190.7. 5 J. J. BARTENSTEIN. POWER TRANSMISSION DEVIGE.

APPLICATION FILED MAE.30,1906.

- 2 SHEETS-SHEET 8.

J27 2/527 r01 J57? @1125 arzensiez' n M3 M :Q m M UNITED STATES PATENT OFFICE. JOHN J. BARTENSTEIN, or CLEVELAND, OHIO, ASSIGNOR or ONEsTHIRD TO FRANK A. HEISER, AND ONE-THIRD To CHARLES B. KELLEY, OF CLEVE- LAND, 01110. r a

POWER-TRANSMISSION, DEVICE.

To all whom it may concern:

Be it known that 1, JOHN J. BARTENSTEIN, a citizen of the United States, residing at, Cleveland, in the county of Cwyahoga and State of Ohio, have invented certain new and useful Improvements in Power-Transmission Devices, tion. 1

This invention relates to mechanisms for transmitting power from a rotatable drivingshaft to a driven shaft, and more particularly to transmitting mechanisms provided with friction driving means, variablc-speed arrangements, and reversible movements.

.L y invention is capable of 'extensive application in mechanics, and its principal object is to secure greater elliciency through simpler and more convenient neans; than those heretofore known. Further objects are to.- provide friction members having a maximum durability and driving power, together with improved means for regulating the pressure between said members and for changing the relative speed of said members. 1

To these ends my invention consists in the features, arrangements, and combinations hereinafter described and definitely claimed, an embodiment thereof being illustrated in the accompanying drawings, in which Figure 1 is a plan view, and Fig. II is aside elevation, of the transmitting mechanism. Fig. III is a sectional elevation taken on line III III of Fig. I.

It is obvious'that the driven from either end; shaft indicated by the the driving-shaft and b the shaft to be driven by the device. The ower-shaft a has a bearing in the standardhl, which standard is supported upon a suitable base-plate or foundation e, and said shaft is provided with a s ur gear-wheel 0, fixed thereon. Rotatab y mounted in bearings in the standard (1', upon either side and parallel to the shaft a, is a pair of shafts f and f, adapted to be driven of which the following isa specificame chaiiism may. be but I prefer that the reference-lettera be -'by the shaft or. 7 Several forms of clutch and gearing mechanism may be employed vto accomplish the proper driving ofthe shafts" f and f but I now consider the form. shown herein to be preferable and will proceed to describe it. v

A spur gear-wheel g is mounted to run loosely upon the shaft f, and a' similar spur Specification of Letters Patent. Application filed March 30, 1906. Serial No. 308,902.

-wheels 0 and g rammed Marta 19, 1907.

wheel g is loosely mounted upon the shaft f, 5

both wheels 9 and g meshing with the driv ing-wheel, c. Spur-wheels h and h of the same size and meshing together are keyed,

respectively, to the shafts f and f. The

outer faces of the wheels g vided, respectively, with clutch-jaws, as shown at i and i, and slidable collars j and y", mounted, respectively, over feather-keys upon the shafts f-and f, are provided with corresponding jaws adapted jaws i and 2". A hand-lever 7c is pivoted at Z to some part or extension of the base-plate c and provided with the usual forks adapted to engage with and slide the clutch members 3' and 7 along their sha; ts. The lever is is .so that by moving it to the right, as shown in Fig. I, the slia; t f will be driven through the and clutch member 7', and shaftf will be driven at the same speed, but

in the opposite direction, through the wheels 75 h and h When left, the sliaftf thelever 7c is moved to the will be driven by the wheels I c andg and clutch member 7', and the shaft slidable bearin sfor the said f will be revolved in the opposite direction at v mhdfi. A 80 central pos1t1on of the lever It should release the same speed by the u heels 7t both clutches. Thus it will be seen that the shafts f and f are driven always at equal speeds witheac h other, but in directions opposite to each other, revolution is reversed by shigting the lever is from one endofdts travel to the other, and that the mechanism comes torest when the lever 7c is permitted to remain at its middle position. v

The shaft 11 is rotatably mounted in suitable bearings m and .m.'-and has-rigidly secured theretoa friction-disk 71, having conical side faces, as plainly shown in Figs. I and III. A-standard 0, or foundation, has slidably mounteduipon it a slide-block p, suitably guided, as shown, and provided with arms qandg, which armsere 111 cross-section,-preferably square, and are ere.

with and equidistant froni oe faces of the fr|ctended parallelthe respective conical side tion-wheeln, terminating beyond and underneath the shaft 7). Hangers r and 1",for.s'up-- porting the ends of the fork-armsq and g are suspended from loose bearings upon the 1 5 ower ends with shaft 1) and provided at theirl fork armsf. A lever s, pivoted and g are proto engage the placed,

that their direction of secured to the base-plate 5 upon a suitable suppoit at t which the short shafts o and v are rotatably r mounted, said shafts having secured upon their forward ends, respeeti ely, friction cones y and 3 adapted to fit a ainst the side faces of the disk n. Collars a: andnc are provided to prevent longitudinal displace- 'ment of the shafts 'u and v. Knuckle-joints 'wand w and z and z are employed to connect with the respective shaftsf and f and 'v and v to the intermediate telescoping shafts,

thus forming universally-j ointed connections.

23 The last-named shafts consist of hollow shafts 2 and 2, havin shafts 3 and 3 adapted to slide therein an provided with means, such as the key shown in Fig. II, to prevent rotation upon each other. A slipper or cross-head 4 is arranged to slide in suitable guides upon the upper face of the f ork-block p, having lateral extensions operatively connected, respectively, to the bearings 14 and u I by links or connecting-rods 5 and 5. The

3o speed-changing lever 6, Fig. I, is pivoted to an extraneous support at 7 and adapted to wheel engage the slipper 4, as shown.

, In the operation of the device it is apparcut that by moving the fork-block ,n away from the disk 11-, through the medium of the:

lever s or other suitable means, the driving cones y and y will be drawn out of contact with the disk 71, and by thrusting the block 2) forward the cones 1 and 1 will be brought 40 into engagement with the disk 11 and mav be pressed against the faces thereof with as much force may be necessary to secure t he Proper amount of'friction between the said j conical surfaces. The speed of rotation of 5 the shaft 1) may bevaried at. will by shifting the lever 6, which operates to draw the cones 7/ and y outward. toward the periphery of the disk n or to thrust them inward toward the shaft 6. 'f'riction members, andthereby securing a minimum slip of the friction-surfaces upon each other and also the advantages of a central friction-disk p'rr-sscd between the driving-gea rs will be obvious to those conversant with mcclninicul principles.

flaviifgthusdescribed my invention so that those skilled inthe art to which it appcrtains can make and use it, either in the form i The advantages of using conical eaves? side faces of said wheel respectively, tive connections between said rotatable shaftand said cones adapted to rotate said cones in opposite direetions,-and means for sliding said cones along the side faces of said wheels without varying the relative angles of' the contacting surfaces thereof, substantially as set forth.

2. In a power-transmitting mechanism, the combination with a rotatable shaft, of a friction-wheel having conical side faces, a

side faces of said wheel respectively, operative connections between said rotatable shalt and said cones adapted to rotate said cones in opposite directions, means for sliding said cones along the side faces of said wheel without varying the relative angles of the con- 'tacting surfaces thereof, and. means for moving said. cones radially of said wheel, substantially as set forth.

3. In a power-transmitting mechanism, the combination with a rotatable shaft, of a. friction-wheel having conical side faces, a pair of friction-cones adapted to engage the side faces of said wheel respectively, operative connections between said rotatable shaft and said cones adapted to rotate said cones in opposite directions, mechanism for reversing the motion of said. cones, and means for sliding said cones along the side faces of said without varying the relative. angles of the contacting surfaces thereof, sul-istantiall)" as set forth.

4; in a power-trans]uit'ting mechanism, the combination w th a rotatable shaft, of a friction-wheel having conical side faces, a pair of friction-cones adapted to engage. the side facesof said wheel respectively, opernlivc connections between said rotatable shaft and said cones adapted to rotate said cones in opposite directions, mechanism for reversing the motion of said cones, means for sliding said concs along the side faces of said wheel, and means formoving said cones into and out of contact with said wheel, substantially as set forth.

5. The combination with a rotatable friciion-whccl having conical side faces. of a slide-block provided with arms: extended parallel respectively with the sidb faces of said wheel, a 'slid nble bearing upon each of said arms, friction-cones rotatably mounted respectively in said slidable bearings and fitted to engage the rcspectivcsidc faces of said wheel, means for reci )rocating said slide-block toward and from said wheel, and

1 means for rotating said friction-concs in opshown herein or under some modificationco thereof, what i, claim as new, and desire to secure by Let tcrs Patent, is:-

l I in a pmver-transmitting meclninisrn,

the combination with a rotatable shaft, of a friction-wheel having conical side faces, a

positc direct ltlllS SlllJSltllll pally as set forth.

(i. The combination win a rotatable friction-whccl having conical side faces, of a slide-blocl provided with arms extended c pair of friction-cones adapted to engage the 5 parallel respectively with the side faces of aid wheel. a shdnble bearing upon each of said arms, fr ction-cones rotatably mounted operapair of-friction-cones adapted to engage the respectively in said. slidable bearings and. fitted to engage the respective side faces ofsaid wheel, means for reciprocating said the side faces of said wheel, hangers loosely mounted upon said shaft for slidably'supporting said arms respectively, a bearing slidably mounted upon each of' said arms,

friction-cones roratahly mounted respectively in said bearings and fitted to engage the respective side faces of-said wheel, means for reciprocating said slide-block toward and from said wheel, and operative connections to said friction-cones, substantially as set forth.

S. The combination with a'rotatable shaft,

and a friction-wheel securedthereon having conical side faces, of a slide-block in front of said wheel provided with arms extended be-' yond said shaft and parallel respectively with the side faces of said wheel, hangers loosely mounted upon said shaft for slidably supporting said arms respectively, a hearing slidably mountedupon each of said arms, friction-cones rotatably mounted respectively in said bearings and fitted to engage the respective side faces of said wheel, means for reciprocating said slide-block toward and from said wheel,. means for sliding said bear-- ings along said arms, and rotatable shaft connections to 'said friction-cones, substantially as set forth.

9; The combination with a rotatable friction-wheel having conical side faces, and a pair of friction-cones rotatably mounted one upon each'side of said wheel, of means for moving said cones into and out of contact with saidwheel, means for shifting said cones along/the side'faces of said wheel, a pair of parallel shafts geared together, universallyjointed and telescoping rotatableshaft con parallel shafts respectively, a driving-shaft,

mechanlsm connecting said driving-shaft with said parallel shafts, substantially as set forth.

In testimony whereof I have hereunto affixed my signature, in the presence. of two subscribing witnesses, at (/leveland, Ohio, thislOth day of August, 1905.

JOHN J. BARTENSTEIN. I

Witnesses I FRANK A. IIEISEB, Cn'As. B. KELLEY;

- nections between said friction-cones and said and suitable power-transmitting and clutch 

